Check-rower for corn-planters



(No Model.)

J. P. EBERT.

GHEGK ROWER FOR CORN PLANTERS.

No. 273,827. Patented Mar.13;1883.

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UNITED STATES PATENT OFFICE.

vJACOB F. EBERT, OF DECATUR, ILLINOIS.

CH EC K-ROWER FOR CORN-PLANTERS.

SPECIFICATION forming part of Letters Patent No. 273,827, dated March 13, 1883.

Application filed September 8. 1882. No model.)

T 0 all whom it may concern:

Be it known that I, JACOB F. EBERT, a citizen of the United States, residing at Decatur, in the county of Macon and State of Illinois, have invented certain new and useful Improvements in Check-Rowers for Corn-Planters, of which the following is a specification.

My invention relates to check rowers for corn-planters; and it consists in the mechanism used to effect a lock between the oscillating tappet and the check-rower shaft.

This mechanism consists in a double ratchet and a slotted rocking catch, constructed and arranged to operate as will be hereinafter specified.

1n the drawings accompanying and forming a part of this specification, Figures 1 and 2 are elevations of my device on sectional linear w of Fig. 3. Fig.1 represents a stroke and lock efi'ected. Fig. 2 shows the oscillating tappet in position to be operated bythe checkrow stop, and Fig. 3 shows the position of the various parts as seen in side elevation.

a is the oscillating tappet, working loosely on shaft g.

b is a slotted rocking catch, pivoted at 0 on upright d.

c and f are ratchets rigid on shaft g, with their teeth projectingi'n opposite directions, as shown.

h is a pin on tappet a, that projects into the slot in catch 1).

c is a pawl on tappet a, that engages ratchet 6.

m is a spring that returns the tappet after a stroke has been made.

nis the check-row wire, that, passing through the crotched end of tappet a, operates the same.

Shaftg extends across the planter, and is provided with a tappet and locking device at each end. The motion of the shaft is intermittent rotary, and said shaft is connected with the seed-slides of the corn-planter by means of suitable gearing.

Upright d is attached to the ends of the check-row bar, and furnishes bearings for the shaft and rocking catch.

The slot in catch 1) conforms throughout the greater part of its length to the are described by pin h. At one end, however, as indicated at b, the slot is deflected outward from its segmental course. A tooth atp engages theteeth of the ratchet.

In operation the tappet lies in the position shown in Fig. 2 until thrown by a stop on the Wire into the position shown in Fig. 1, and the wire, passing on the tappet, is returned to its original position by spring m. When laying as shown in Fig. 2, pin h is in the deflected portion of the slot, and the catch, swung to one side, is disengaged from its contact with ratchet f. As the pin passes into the segmental portion of the slot the contact with the ratchet is renewed, and when a completestroke is made an absolute lock is effected. As the tappet is drawn back by spring or the catch is not immediately disengaged from the ratchet, but remains in contact until the pin reaches the deflected portion of the slot.

As before mentioned, there is alock, tappet, 850., at each end of the check-row bar, that are used alternately as the planter passes in different directions, and the tappet not in use lies, as shown in Fig. 2, with its pawl c dropping behind the ratchet-teeth after every stroke, effectually preventing any back motion in the shaft.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. The rocking catch 1), provided with deflecting slot I), in combination with pin hand tappet a, as and for the purpose set forth.

2. Locking catch 1), deflected slot b, pin h, and tappet a, in combination with double ratchet ef, as and for the purpose set forth.

3. Rocking catch I), deflected slot 1), pin h, and tappet a, in combination with upright d, as and for the purpose set forth.

JACOB F. EBERT.

Attest:

W. I. WALKER, O. L. WAGooNnn. 

